A new paper purports to rule out all forms of collisionless dark matter in a general fashion. https://arxiv.org/abs/1707.01059

Taken together with exclusions for self-interacting dark matter, MACHOs, WIMPs, Cold Dark Matter (as opposed to Warm Dark Matter) generally, and strict limitations from accelerators and annihilation searches on Warm Dark Matter parameter space (which pretty much requires it to have no EM, strong or weak interactions), this strongly favors modified gravity solutions as the only viable solutions.

This echoes another recent paper discounting baryon effects as a way to save Cold Dark Matter models. https://arxiv.org/abs/1706.03324